<html>
<head>

<script id='vertex' type='x-shader/x-vertex'>
attribute vec3 aVertexPosition;
uniform mat4 uPMatrix;

void main() {
    gl_Position = uPMatrix * vec4(aVertexPosition, 1.0);
}
</script>

<script id='fragment' type='x-shader/x-fragment'>
precision mediump float;

void main() {
    gl_FragColor = vec4(0.0, 0.0, 0.2, 1.0);
}
</script>

</head>
</html>